Question: Procurement manager Ikbal is working on preparing a 10-day inventory management and order schedule for Dragon Ball Inc. The company has the following cost structure
Procurement manager Ikbal is working on preparing a 10-day inventory management and order schedule for Dragon Ball Inc. The company has the following cost structure and demand structure:
Setup(order) cost is $30, unit product cost is $20 and planned holding fraction (h) is 10%. Orders take 3 days to arrive to facility and they typically hold a 10% of lead time demand as safety stock. Daily demand is given as follows.
| Day | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| Demand | 210 | 70 | 230 | 160 | 250 | 170 | 220 | 200 | 140 | 350 |
| Starting inv. | 600 |
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| Ending inventory | 390 |
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| Order quantity |
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| Inventory Held (Ending Inv-Starting Inv) |
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Answer the following questions:
- What is the average daily demand?
- What is the reorder point (ROR)?
- What is the annual demand assuming a 240 workdays per year?
- What is the Economic Order Quantity?
- Complete the table based on Continuous Review Fixed Order Quantity (Q,r) Policy, and calculate the total order cost and total inventory carrying cost during the 10-day planning period.
Provide your answers briefly and show your calculations in an MS Excel file.
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